update cran comments

Author: Yue-Jiang

cran-comments.md

@@ -1,22 +1,10 @@
 ## Test environments
-* local OS X install, R 3.6.1
+* local OS X install, R 4.0.2
 * ubuntu 16.04 (on travis-ci, devel and release)
 * win-builder (devel and release)
 
 ## R CMD check results
-There were no ERRORs or WARNINGs.
-
-There was one NOTE:
-```
-* checking CRAN incoming feasibility ... NOTE
-Maintainer: 'Yue Jiang <rivehill@gmail.com>'
-
-New maintainer:
-  Yue Jiang <rivehill@gmail.com>
-Old maintainer(s):
-  Aleksandra Paluszynska <ola.paluszynska@gmail.com>
-```    
-The maintainer role has been passed along to Yue Jiang and this is correct.
+There were no ERRORs, WARNINGs or NOTEs.
 
 ## Downstream dependencies
 There are no downstream dependencies at this time.